Wind Turbine Noise Emission Customised Solutions for French Legislation

Transcription

1 Wind Turbine Noise Emission Customised Solutions for French Legislation Énergie éolienne et innovation : quelles solutions face aux exigences techniques, réglementaires et environnementales? MEDDTL le 5 juillet Denis Grelier Technology Manager, Vestas France [Vestas Mediterranean, Technology]

2 Agenda Noise and Wind Farm: a specific issue Aerodynamic customised solutions Mechanical solutions Flexibility 2 Vestas - Innovation and Acoustic 05th July Paris

3 Wind Farm and surroundings Développeur Acousticien 3 Vestas - Innovation and Acoustic 05th July Paris

4 Noise from a Wind Turbine. What is it about? Wind Turbine Noise: a specific issue Wind turbine noise -> subjective effects and interference with human activities Wind turbine noise industrial noise (large scale power plants) ᅳ Rural or remote areas with corresponding ambient noise character Required by local legislations 4 Vestas - Innovation and Acoustic 05th July Paris

5 Noise Complex formula Noise depends on... Wind speed In-flow angle Wind shear Turbulence intensity Pitch angle Hub height Component noise characteristics Tip speed Main sources are... Aerodynamic Noises: Blade profile Pitch angle Vortex Generators, Stall Strips other details on the outer blade parts Mechanical Noises Gearbox, Generator auxiliary equipment (fans)

6 L w (A) France Demanding Legislation Noise emergence is a site specific parameter That requires site specific noise strategy Aerodynamic Mechanical Total Wind Speed Noise emergence is critical at low wind speeds Site Specific means Flexibility 6 Vestas - Innovation and Acoustic 05th July Paris

7 Aerodynamic solutions Denis Grelier Technology Manager, Vestas France [Vestas Mediterranean, Technology]

8 Aerodynamic performance Aerodynamic Competencies Blade design 8 Vestas - Innovation and Acoustic 05th July Paris

9 L w (A) Balance between Noise and Production Noise curve offer: Focus on Noise reduction Fulfil local requirements ᅳ Allowable max noise level, ex: Germany, Denmark, Canada, Spain ᅳ Emergence, ex: France, UK, Australia Continuous improvement based on field input Wind Speed Dedicated approach to French Market 9 Vestas - Innovation and Acoustic 05th July Paris

10 Mechanical solutions Denis Grelier Technology Manager, Vestas France [Vestas Mediterranean, Technology]

11 Mechanical Sources 11 Vestas - Innovation and Acoustic 05th July Paris

12 Problematic Noise Sources Hydraulic Station Nacelle and Cooler Fans 12 Name of presentation

13 Top Cooler 13 Vestas - Innovation and Acoustic 05 th July Paris

14 Noise damping Reduce vibration level of main components Vibration isolation mountings Noise damping 14 Vestas - Innovation and Acoustic 05th July Paris

15 Flexibility Denis Grelier Technology Manager, Vestas France [Vestas Mediterranean, Technology]

16 Focus on Flexibility (Noise Reduction Management System) Wind Direction, Wind Speeds Time Optimize the Noise Strategy Innovation to serve the Population 16 Vestas Products and Technology Portfolio

17 Thank you for your attention Copyright Notice The documents are created by Vestas Wind Systems A/S and contain copyrighted material, trademarks, and other proprietary information. All rights reserved. No part of the documents may be reproduced or copied in any form or by any means - such as graphic, electronic, or mechanical, including photocopying, taping, or information storage and retrieval systems without the prior written permission of Vestas Wind Systems A/S. The use of these documents by you, or anyone else authorized by you, is prohibited unless specifically permitted by Vestas Wind Systems A/S. You may not alter or remove any trademark, copyright or other notice from the documents. The documents are provided as is and Vestas Wind Systems A/S shall not have any responsibility or liability whatsoever for the results of use of the documents by you.